Our taxi fare from Long Beach airport was about $35. However from the port to Long Beach to Long Beach airport was about $40. The taxis from the airport are less expensive than those frome the cruise ship terminal. There was a flat rate price sign ($35 I believe) at the cruise ship terminal but our taxi driver didn't honor it and we almost got into a dispute. Rather than argue, we paid the fare and refused to tip him because of his arrogance.
I hope this helps.